Mount Surprise Township Threshold Days by Year (ASN00030036)

13 fixed thresholds counted per year at Mount Surprise Township (ASN00030036): hot days, frost, tropical nights and heavy rain, with the most days in a year.

Key Facts for Mount Surprise Township Thresholds

Mount Surprise Township: days with 10 mm (0.39 in) or more of precipitation in 108 years, most in 1955 with 38.
Mount Surprise Township: days with 25 mm (0.98 in) or more of precipitation in 108 years, most in 1981 with 21.
Mount Surprise Township: days with 50 mm (1.97 in) or more of precipitation in 99 years, most in 1950 with 9.
Mount Surprise Township: days with 100 mm (3.94 in) or more of precipitation in 30 years, most in 1955 with 2.
13 fixed thresholds have at least one qualifying day at Mount Surprise Township.

Days at or above 30 C (86 F)

14 years with a qualifying day

Days per year at Mount Surprise Township with a maximum temperature at or above 30 C (86 F), with the decade average as a line. The most was 272 in 1958.

Days at or above 30 C (86 F) per year at Mount Surprise Township
Year	Days	Decade average
1957	235	243
1958	272	243
1959	222	243
1960	243	237.8
1961	257	237.8
1962	255	237.8
1963	231	237.8
1964	253	237.8
1965	228	237.8
1966	237	237.8
1967	204	237.8
1969	232	237.8
1976	180	170.5
1977	161	170.5

For each year, a bar from the first to the last day at Mount Surprise Township meeting 30 C (86 F).

First to last qualifying date each year at Mount Surprise Township
Year	First date	Last date
1957	1957-01-01	1957-12-31
1958	1958-01-01	1958-12-31
1959	1959-01-01	1959-12-31
1960	1960-01-01	1960-12-31
1961	1961-01-01	1961-12-31
1962	1962-01-01	1962-12-31
1963	1963-01-01	1963-12-31
1964	1964-01-01	1964-12-31
1965	1965-01-01	1965-12-31
1966	1966-01-01	1966-12-31
1967	1967-01-01	1967-12-31
1969	1969-01-01	1969-12-31
1976	1976-01-01	1976-12-31
1977	1977-01-02	1977-12-30

Every Fixed Threshold

Fixed thresholds at Mount Surprise Township
Threshold	Years with a qualifying day	Most days in a year	Year	Latest year days
30 C (86 F): Days	14	272	1958	161
35 C (95 F): Days	14	100	1958	35
40 C (104 F): Days	6	5	1965	2
90 F (32.2 C): Days	14	200	1961	96
100 F (37.8 C): Days	14	28	1959	3
0 C (32 F): Frost days (min	6	4	1963	1
20 C (68 F): Tropical nights (min	15	137	1964	111
25 C (77 F): Days with min	11	7	1967	1
10 mm (0.39 in): Days with 10 mm or more rain	108	38	1955	22
25 mm (0.98 in): Days with 25 mm or more rain	108	21	1981	11
50 mm (1.97 in): Days with 50 mm or more rain	99	9	1950	4
100 mm (3.94 in): Days with 100 mm or more rain	30	2	1955	2
200 mm (7.87 in): Days with 200 mm or more rain	2	1	1956	1

Years with under 90 percent of days observed are left out of the most days column. Threshold history at this station starts in 1957.

Download the Data

Data for Mount Surprise Township threshold days by year: CSV or JSON. Field meanings are on the data page.

Source: NOAA National Centers for Environmental Information, Global Historical Climatology Network Daily (GHCN-Daily). Records are computed by World Extreme Weather Monitor and are not official NOAA products. (US Government open data (NOAA NCEI)) Data as of 2026-10-17 (17 October 2026). Threshold counts are computed by this site.

Data as of 2026-10-17. Last revised 17 October 2026 (2026-10-17).

Mount Surprise Township Threshold Days by Year (ASN00030036)

Key Facts for Mount Surprise Township Thresholds

Days at or above 30 C (86 F)

Every Fixed Threshold

Download the Data

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